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MC908QC8CDRE Datasheet(PDF) 17 Page - Freescale Semiconductor, Inc

No. de Pieza. MC908QC8CDRE
Descripción  M68HC08 Microcontrollers
Descarga  274 Pages
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Fabricante  FREESCALE [Freescale Semiconductor, Inc]
Página de inicio  http://www.freescale.com
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MC908QC8CDRE Datasheet(HTML) 17 Page - Freescale Semiconductor, Inc

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MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 5
Freescale Semiconductor
17
Chapter 1
General Description
1.1 Introduction
The MC68HC908QC16, MC68HC908QC8, and MC68HC908QC4 are members of the low-cost,
high-performance M68HC08 Family of 8-bit microcontroller units (MCUs). All MCUs in the family use the
enhanced M68HC08 central processor unit (CPU08) and are available with a variety of modules, memory
sizes and types, and package types.
0.4
1.2 Features
Features include:
High-performance M68HC08 CPU core
Fully upward-compatible object code with M68HC05 Family
5.0-V and 3.3-V operating voltages (VDD)
8-MHz internal bus operation at 5 V, 4-MHz at 3.3 V
Trimmable internal oscillator
Software selectable 1 MHz, 2 MHz, 3.2 MHz, or 6.4 MHz internal bus operation
8-bit trim capability
25% untrimmed
Trimmable to approximately 0.4%(1)
Software selectable crystal oscillator range, 32–100 kHz, 1–8 MHz, and 8–32 MHz
Software configurable input clock from either internal or external source
Auto wakeup from STOP capability using dedicated internal 32-kHz RC or bus clock source
FLASH security(2)
On-chip in-application programmable FLASH memory (with internal program/erase voltage
generation)
Table 1-1. Summary of Device Variations
Device
FLASH
Memory Size
RAM
Pin Count
MC68HC908QC16
16 Kbytes
512 bytes
16, 20, 28 pins
MC68HC908QC8
8 Kbytes
384 bytes
16, 20, 28 pins
MC68HC908QC4
4 Kbytes
384 bytes
16, 20, 28 pins
1. See 19.11 Oscillator Characteristics for internal oscillator specifications
2. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the FLASH difficult for
unauthorized users.


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